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-rw-r--r--sound/pci/hda/hda_intel.c56
1 files changed, 39 insertions, 17 deletions
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index c1771929466b..0e292dc4fd87 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -337,6 +337,7 @@ struct azx {
unsigned int initialized :1;
unsigned int single_cmd :1;
unsigned int polling_mode :1;
+ unsigned int msi :1;
};
/* driver types */
@@ -397,6 +398,7 @@ static char *driver_short_names[] __devinitdata = {
*/
#define upper_32bit(addr) (sizeof(addr) > 4 ? (u32)((addr) >> 32) : (u32)0)
+static int azx_acquire_irq(struct azx *chip, int do_disconnect);
/*
* Interface for HD codec
@@ -536,6 +538,18 @@ static unsigned int azx_rirb_get_response(struct hda_codec *codec)
schedule_timeout_interruptible(1);
} while (time_after_eq(timeout, jiffies));
+ if (chip->msi) {
+ snd_printk(KERN_WARNING "hda_intel: No response from codec, "
+ "disabling MSI...\n");
+ free_irq(chip->irq, chip);
+ chip->irq = -1;
+ pci_disable_msi(chip->pci);
+ chip->msi = 0;
+ if (azx_acquire_irq(chip, 1) < 0)
+ return -1;
+ goto again;
+ }
+
if (!chip->polling_mode) {
snd_printk(KERN_WARNING "hda_intel: azx_get_response timeout, "
"switching to polling mode...\n");
@@ -1364,6 +1378,20 @@ static int __devinit azx_init_stream(struct azx *chip)
return 0;
}
+static int azx_acquire_irq(struct azx *chip, int do_disconnect)
+{
+ if (request_irq(chip->pci->irq, azx_interrupt, IRQF_DISABLED|IRQF_SHARED,
+ "HDA Intel", chip)) {
+ printk(KERN_ERR "hda-intel: unable to grab IRQ %d, "
+ "disabling device\n", chip->pci->irq);
+ if (do_disconnect)
+ snd_card_disconnect(chip->card);
+ return -1;
+ }
+ chip->irq = chip->pci->irq;
+ return 0;
+}
+
#ifdef CONFIG_PM
/*
@@ -1385,7 +1413,7 @@ static int azx_suspend(struct pci_dev *pci, pm_message_t state)
free_irq(chip->irq, chip);
chip->irq = -1;
}
- if (!disable_msi)
+ if (chip->msi)
pci_disable_msi(chip->pci);
pci_disable_device(pci);
pci_save_state(pci);
@@ -1407,16 +1435,11 @@ static int azx_resume(struct pci_dev *pci)
return -EIO;
}
pci_set_master(pci);
- if (!disable_msi)
- pci_enable_msi(pci);
- if (request_irq(pci->irq, azx_interrupt, IRQF_DISABLED|IRQF_SHARED,
- "HDA Intel", chip)) {
- printk(KERN_ERR "hda-intel: unable to grab IRQ %d, "
- "disabling device\n", pci->irq);
- snd_card_disconnect(card);
+ if (chip->msi)
+ if (pci_enable_msi(pci) < 0)
+ chip->msi = 0;
+ if (azx_acquire_irq(chip, 1) < 0)
return -EIO;
- }
- chip->irq = pci->irq;
azx_init_chip(chip);
snd_hda_resume(chip->bus);
snd_power_change_state(card, SNDRV_CTL_POWER_D0);
@@ -1452,7 +1475,7 @@ static int azx_free(struct azx *chip)
synchronize_irq(chip->irq);
free_irq(chip->irq, (void*)chip);
}
- if (!disable_msi)
+ if (chip->msi)
pci_disable_msi(chip->pci);
if (chip->remap_addr)
iounmap(chip->remap_addr);
@@ -1508,6 +1531,7 @@ static int __devinit azx_create(struct snd_card *card, struct pci_dev *pci,
chip->pci = pci;
chip->irq = -1;
chip->driver_type = driver_type;
+ chip->msi = !disable_msi;
chip->position_fix = position_fix;
chip->single_cmd = single_cmd;
@@ -1537,16 +1561,14 @@ static int __devinit azx_create(struct snd_card *card, struct pci_dev *pci,
goto errout;
}
- if (!disable_msi)
- pci_enable_msi(pci);
+ if (chip->msi)
+ if (pci_enable_msi(pci) < 0)
+ chip->msi = 0;
- if (request_irq(pci->irq, azx_interrupt, IRQF_DISABLED|IRQF_SHARED,
- "HDA Intel", (void*)chip)) {
- snd_printk(KERN_ERR SFX "unable to grab IRQ %d\n", pci->irq);
+ if (azx_acquire_irq(chip, 0) < 0) {
err = -EBUSY;
goto errout;
}
- chip->irq = pci->irq;
pci_set_master(pci);
synchronize_irq(chip->irq);